Technician cant create request

Technician cant create request

I have problem to Add Request via /api/v3/requests all time getting response 
{
    "response_status": {
        "status_code": 4000,
        "messages": [
            {
                "status_code": 4001,
                "field": "requester",
                "type": "failed"
            }
        ],
        "status": "failed"
    }
}
And I know  that API call is failing due to the requester field. But user is Technician so how to add request as Technician?